Radio testing device or similar article



FIG. 1 is a front and top left perspective view of a radio testing device or similar article;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a second embodiment of my new design of FIGS. 1-4; all other views being identical to the first embodiment. 

The ornamental design for a radio testing device or similar article, substantially as shown and described. 